<template>
  <div class="btns">
    <div class="btn java">JAVA攻城狮</div>
    <div class="btn golang">Golang工程师!</div>
    <div class="btn js"><span>js攻城狮</span></div>
    <div class="btn nodd-ruby ruby">
      <div class="anim"></div>
      <span>Ruby攻城狮</span>
    </div>

    <div class="btn vb">
      <span>VB攻城狮</span>
      <div class="dot"></div>
    </div>
    <div class="btn python python-1">python攻城狮</div>
    <div class="btn python python-2">python攻城狮</div>
    <div class="btn python python-3">python攻城狮</div>
    <div class="btn python python-4">python攻城狮</div>
    <div class="btn python python-5">python攻城狮</div>

    <div class="btn php php-1">php攻城狮</div>
    <div class="btn php php-2">php攻城狮</div>
    <div class="btn php php-3">php攻城狮</div>
    <div class="btn php php-4">php攻城狮</div>
    <div class="btn php php-5">php攻城狮</div>

    <div class="btn kotlin kotlin-3">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-1">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-4">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-2">kotlin攻城狮</div>
    <div class="btn kotlin kotlin-5">kotlin攻城狮</div>
    <div class="btn c">C语言攻城狮</div>
  </div>
</template>
<script setup lang="ts"></script>

<style lang="scss" scoped>
.text-info {
  position: absolute;
  top: calc(50vh - 245px);
  text-align: center;
  font-size: 12px;
  color: #999;
  width: 100%;
  margin-left: -5px;
}

.btn {
  vertical-align: top;
  margin: 15px;
  display: inline-block;
  text-align: center;
  width: 122px;
  height: 44px;
  line-height: 44px;
  border-radius: 4px;
  color: #fff;
  cursor: pointer;
}

.java {
  color: #eb9e05;
  height: 42px;
  line-height: 42px;
  width: 120px;
  border: 1px solid #eb9e05;
  opacity: 1;
  transition: all 0.6s;
}

.java:hover {
  background: #eb9e05;
  color: #fff;
}

.java:active {
  opacity: 0.2;
}

.c {
  height: 44px;
  line-height: 44px;
  background: #55acee;
  transition: all 0.5s;
  box-shadow: 0px 5px 0px 0px #3486d5;
}

.c:hover {
  background-color: #6fc6ff;
}

.c:active {
  transform: translate(0px, 4px);
  -webkit-transform: translate(0px, 4px);
  box-shadow: 0px 1px 0px 0px #3486d5;
}

@keyframes sheen {
  0% {
    transform: skewY(-45deg) translateX(0);
  }

  100% {
    transform: skewY(-45deg) translateX(12.5em);
  }
}

.golang {
  vertical-align: top;
  height: 42px;
  line-height: 42px;
  width: 120px;
  color: #2194e0;
  border: 1px solid #2194e0;
  transition: all 0.2s ease-in-out;
  position: relative;
  opacity: 1;
  overflow: hidden;
}

.golang:before {
  content: '';
  background-color: rgba(255, 255, 255, 0.5);
  height: 100%;
  width: 3em;
  display: block;
  position: absolute;
  top: 0;
  left: -4.5em;
  transform: skewX(-45deg) translateX(0);
  transition: none;
}

.golang:hover {
  background-color: #2194e0;
  color: #fff;
}

.golang:hover:before {
  transform: skewX(-45deg) translateX(260px);
  transition: all 0.5s ease-in-out;
}

.golang:active {
  opacity: 0.8;
}

.js {
  width: 160px;
  height: 42px;
  line-height: 42px;
  background: #0d6;
  width: 120px;
  border: 1px solid #0d6;
  overflow: hidden;
  transition: all 0.5s;
  opacity: 1;
}

.js:hover,
.js:active {
  text-decoration: none;
  color: #0c5;
  border-color: #0c5;
  background: #fff;
}

.js:active {
  opacity: 0.8;
}

.js span {
  display: inline-block;
  position: relative;
  padding-right: 0;
  transition: padding-right 0.5s;
}

.js span:after {
  content: ' ';
  position: absolute;
  top: 0;
  right: -18px;
  opacity: 0;
  width: 10px;
  height: 10px;
  margin-top: -10px;
  background: rgba(0, 0, 0, 0);
  border: 2px solid #fff;
  border-top: none;
  border-right: none;
  transition: opacity 0.5s, top 0.5s, right 0.5s;
  transform: rotate(-140deg);
}

.js:hover span,
.js:active span {
  padding-right: 30px;
}

.js:hover span:after,
.js:active span:after {
  transition: opacity 0.5s, top 0.5s, right 0.5s;
  opacity: 1;
  border-color: #0c5;
  right: 0;
  top: calc(50% + 2.5px);
  transform: rotate(-140deg);
}

.nodd-ruby {
  background: #c147e6;
  position: relative;
  overflow: hidden;
  z-index: 0;
  cursor: pointer;
  opacity: 1;
  transition: all 0.3s;
}

input[type='checkbox'].toggle {
  -moz-appearance: none;
  -webkit-appearance: none;
  position: absolute;
  width: 100%;
  height: 100%;
  margin: 0;
  left: 0;
  top: 0;
  cursor: pointer;
}

input[type='checkbox'].toggle:focus {
  outline: 0;
}

.anim {
  transform: translate(-50%, -50%);
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -1;
}

.anim:before {
  position: relative;
  content: '';
  display: block;
  margin-top: 100%;
}

.anim:after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  border-radius: 50%;
}

.node .toggle:checked + .anim {
  animation: 0.75s anim-in;
}

.node .toggle:checked + .anim:after {
  animation: anim-in-pseudo 0.75s;
}

.node .toggle:not(:checked) + .anim {
  animation: anim-out 0.75s;
}

.node .toggle:not(:checked) + .anim:after {
  animation: anim-out-pseudo 0.75s;
}

.node {
  background: #ed3f14;
}

.node:hover {
  opacity: 0.8;
}

.ruby:active {
  opacity: 0.8;
}

.ruby:hover > .anim {
  animation: anim-out 0.75s;
}

.ruby:hover > .anim:after {
  animation: anim-out-pseudo 0.75s;
}

@-webkit-keyframes anim-in {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@-moz-keyframes anim-in {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@-ms-keyframes anim-in {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@keyframes anim-in {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@-webkit-keyframes anim-in-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.3);
  }

  100% {
    background: transparent;
  }
}

@-moz-keyframes anim-in-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.3);
  }

  100% {
    background: transparent;
  }
}

@-ms-keyframes anim-in-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.3);
  }

  100% {
    background: transparent;
  }
}

@keyframes anim-in-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.3);
  }

  100% {
    background: transparent;
  }
}

@-webkit-keyframes anim-out {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@-moz-keyframes anim-out {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@-ms-keyframes anim-out {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@keyframes anim-out {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@-webkit-keyframes anim-out-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.35);
  }

  100% {
    background: transparent;
  }
}

@-moz-keyframes anim-out-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.35);
  }

  100% {
    background: transparent;
  }
}

@-ms-keyframes anim-out-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.35);
  }

  100% {
    background: transparent;
  }
}

@keyframes anim-out-pseudo {
  0% {
    background: rgba(0, 0, 0, 0.35);
  }

  100% {
    background: transparent;
  }
}

.python {
  transition: 0.5s;
  background-size: 200% auto;
}

.python:hover {
  background-position: right center;
}

.python-1 {
  background-image: linear-gradient(to right, #f6d365 0%, #fda085 51%, #f6d365 100%);
}

.python-2 {
  background-image: linear-gradient(to right, #fbc2eb 0%, #a6c1ee 51%, #fbc2eb 100%);
}

.python-3 {
  background-image: linear-gradient(to right, #84fab0 0%, #8fd3f4 51%, #84fab0 100%);
}

.python-4 {
  background-image: linear-gradient(to right, #a1c4fd 0%, #c2e9fb 51%, #a1c4fd 100%);
}

.python-5 {
  background-image: linear-gradient(to right, #ffecd2 0%, #fcb69f 51%, #ffecd2 100%);
}

.php,
.php::after {
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -o-transition: all 0.5s;
  transition: all 0.5s;
}

.php {
  border: 1px solid #c147e6;
  color: #c147e6;
  width: 120px;
  height: 42px;
  line-height: 42px;
  position: relative;
  z-index: 1;
  text-transform: uppercase;
}

.php:hover {
  color: #fff;
}

.php::before,
.php::after {
  background: #c147e6;
  content: '';
  position: absolute;
  z-index: -2;
  border-radius: 3px;
}

.php-1::after {
  height: 0;
  left: 0;
  top: 0;
  width: 100%;
}

.php-1:hover:after {
  height: 100%;
}

.php-2::after {
  height: 100%;
  left: 0;
  top: 0;
  width: 0;
}

.php-2:hover:after {
  width: 100%;
}

.php-3::after {
  height: 0;
  left: 50%;
  top: 50%;
  width: 0;
}

.php-3:hover:after {
  height: 100%;
  left: 0;
  top: 0;
  width: 100%;
}

.php-4::before {
  height: 100%;
  left: 0;
  top: 0;
  width: 100%;
}

.php-4::after {
  background: #fff;
  height: 100%;
  left: 0;
  top: 0;
  width: 100%;
}

.php-4:hover:after {
  height: 0;
  left: 50%;
  top: 50%;
  width: 0;
}

.php-5 {
  overflow: hidden;
}

.php-5::after {
  height: 100%;
  left: -35%;
  top: 0;
  transform: skew(50deg);
  transition-duration: 0.6s;
  transform-origin: top left;
  width: 0;
}

.php-5:hover:after {
  height: 100%;
  width: 135%;
}

.kotlin {
  background: none;
  border: 1px solid;
  width: 120px;
  height: 42px;
  line-height: 42px;
  letter-spacing: inherit;
  text-transform: inherit;
  transition: color 1s;
}

.kotlin-1 {
  color: #9c89f7;
}

.kotlin-1:hover {
  animation: halftone 1s forwards;
  background: radial-gradient(circle, #9c89f7 0.2em, transparent 0.25em) 0 0/1.25em 1.25em,
    radial-gradient(circle, #9c89f7 0.2em, transparent 0.25em) 6.25em 6.25em/1.25em 1.25em;
  color: #e4f789;
}

@keyframes halftone {
  100% {
    background-size: 2.375em 2.375em, 0.1em 0.1em;
  }
}

.kotlin-2 {
  color: #82f6d8;
}

.kotlin-2:hover {
  animation: stripes-move 0.75s infinite linear;
  background: repeating-linear-gradient(
    45deg,
    #82f6d8 0,
    #82f6d8 0.25em,
    transparent 0.25em,
    transparent 0.5em
  );
  color: #f682a0;
}

@keyframes stripes-move {
  100% {
    background-position: 5em 0px;
  }
}

.kotlin-3 {
  color: #d3f169;
}

.kotlin-3:hover {
  animation: sawtooth 0.35s infinite linear;
  background: linear-gradient(45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em,
    linear-gradient(-45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em;
  color: #8769f1;
}

@keyframes sawtooth {
  100% {
    background-position: 1em 0;
  }
}

.kotlin-4 {
  color: #eea163;
}

.kotlin-4:hover {
  animation: zigzag 1s linear infinite;
  background: linear-gradient(135deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0,
    linear-gradient(225deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0,
    linear-gradient(315deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0,
    linear-gradient(45deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0;
  background-size: 0.75em 0.75em;
  color: #63b0ee;
}

@keyframes zigzag {
  100% {
    background-position: 1em 0, 1em 0, -0.75em 0, -0.75em 0;
  }
}

.kotlin-5 {
  color: #f9879b;
}

.kotlin-5:hover {
  animation: pulse 1s ease-in infinite;
  background: radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, transparent 50%) 0 0/1em 1em,
    radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, transparent 50%) 0.5em 0.5em/2em 2em;
  color: #0bdcb7;
}

@keyframes pulse {
  50% {
    background-position: 0.66em 0.66em, -0.33em -0.33em;
  }

  100% {
    background-size: 2em 2em, 1em 1em;
    background-position: -1.5em -1.5em, -1em -1em;
  }
}

.vb:before,
.vb:after {
  box-sizing: border-box;
}

.vb {
  position: relative;
  width: 120px;
  color: #fa5555;
  height: 40px;
  line-height: 42px;
  border: 2px solid #fa5555;
  border-radius: 14px;
  text-transform: uppercase;
}

.dot {
  content: '';
  position: absolute;
  top: 0;
  width: 32px;
  height: 100%;
  border-radius: 50%;
  transition: all 300ms ease;
  display: none;
}

.dot:after {
  content: '';
  position: absolute;
  top: -6px;
  height: 5px;
  width: 5px;
  background: #fa5555;
  border-radius: 50%;
  border: 4px solid #fa5555;
  box-shadow: 0 0 0.7em #fff, 0 0 2em #fa5555;
}

.vb:hover .dot,
.vb:focus .dot {
  animation: atom 2s infinite linear;
  display: block;
}

/*calc(122px - 36px)  按钮宽度 - dot宽度 - 边框宽度*/
@keyframes atom {
  0% {
    transform: translateX(0) rotate(0);
  }

  30% {
    transform: translateX(calc(122px - 36px)) rotate(0);
  }

  50% {
    transform: translateX(calc(122px - 36px)) rotate(180deg);
  }

  80% {
    transform: translateX(0) rotate(180deg);
  }

  100% {
    transform: translateX(0) rotate(360deg);
  }
}

.btn-down {
  position: absolute;
  top: calc(50vh - 280px);
  text-align: center;
  border-radius: 4px;
  cursor: pointer;
  left: calc(50vw - 87px);
  width: 122px;
  line-height: 44px;
  color: #fff;
  background: #2194e0;
  opacity: 1;
}

.btn-down:active {
  opacity: 0.8;
}
</style>
